Olbia to Modica trains might be a good value for money solution: travelling in Italy by train is often rather cheap and faster than taking a bus indeed Trains leave from Roma Termini and arrive at Modica every about 3 hours on average. If travelling with Trenitalia, you need to know the Olbia to Modica train schedule: the first train leaves at 21:31, while the last ride is at 22:26. A Olbia to Modica train cost about 107.10 €. But how long is the train ride from Olbia to Modica? Your journey takes about 16 hours on average.